Processes in Microsoft 365 for setting up Office apps, redeeming product keys, and activating licenses.
Greetings,
Thank you for reaching out to Microsoft forum.
Would you kindly share with me how you turn off the MFA so that I may know how to proceed further.
In order to narrow down this issue, I would like to know:
1/ What Microsoft 365 subscription are you using (Business Basic, Business Standard, Business Premium, etc.)?
2/ Do you still have access to the old phone or device that previously had Microsoft Authenticator installed?
3/ When the prompt appears, do you see an option to "Use another verification method"?
4/ Could you share with me how you disabled MFA, as you mentioned?
5/ Would you kindly share your domain name with me? (the entire part that comes after the "@" symbol of your email)
Looking forward to hearing from you.